Personal security alarm



FIG. 1 is a front elevation view of a personal security alarm showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view. 

The ornamental design for a personal security alarm, as shown and described. 